【摘 要】
：
The single-crystal structure of the coordination polymer [Nd2(C8H5NO4)3@4H2O]∞ with rhombus-channels is reported in this paper. There are two crystallographica
【机 构】
：
Department of Chemistry
论文部分内容阅读
The single-crystal structure of the coordination polymer [Nd2(C8H5NO4)3@4H2O]∞ with rhombus-channels is reported in this paper. There are two crystallographically independent Nd(Ⅲ) ions, and each Nd(Ⅲ) ion is in the eight-coordinated environment. Seven of eight oxygen atoms are from six 5-aminoisophthalic acid ligands, the other oxygen atom is given by coordination water. Carboxyl groups link two Nd(Ⅲ) ions using η1,1 and η1,3 modes. Two carboxyl groups from ligands chelate Nd(Ⅲ) ion to form four-mem- bered rings. Crystal data: Triclinic, space group a = 1.03680(5) nm, b = 1.66934(15) nm, c = 0.88221(14) nm, α = 99.754(2)°, β = 111.169(4)°,β = 85.400(4)(. Some ligands linking metal Nd(Ⅲ) ions parallel to ab plane form molecu- lar ladders, and the others linking molecular ladders result in rhombus channels along c-axis. These coordinated water molecules and amino groups are pendent in the channels.
其他文献
To solve 3D-VRT equation for the model of spatially inhomogeneous scatter media, the finite enclosure of the scatter media is geometrically divided, in both the
无论从薛定谔方程或是Dirac方程的低能近似出发都可导出同一标准形式的径向方程,这种径向方程可用三点中央差分格式从中心两点出发向外递推求解. 给出了一种求解束缚态的能量
Two novel FeⅡspin crossover complexes [Fe(L1)3](BF4)2·5H2O (1) and [Fe(L2)3](BF4)2·2H2O (2) with 4-NHR-1,2,4-triazole (R = isopropyl, L1; cyclohexyl, L2) wer
A series of rare earth ions doped CdSiO3:RE3+(RE=Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) multi-color long-lasting phosphorescence phosphors a
目前,我国提倡中医药的现代化,在中医药的研究中结合大量的现代生物学技术,且取得了一定的研究成果,如中医药在抗甲型流感病毒H1N1等病毒性感染疾病的作用机制,黄芩苷等抗细
描述了为在放射性束流线上开展核反应研究而研制的灵敏面积为50mm×50mm的双维位置灵敏的低气压多丝正比室. 研制的低气压多丝正比室为穿透式,在真空中使用,工作气压为8mb,透
High-quality SiO2 colloidal crystal multilayers were fabricated from ethanol solutions by the vertical deposition method and the effect of sintering on the opti
分析了K介子在核物质中有效质量的变化受到核物质标量密度和矢量密度的双重影响. 使用Walecka模型和相对论平均场理论,讨论了核物质标量密度与矢量密度的关系,利用这一关系改
文章以盐城生物工程高等职业技术学校(以下简称“我校”)115名五年制高职生为调查对象,采用英语词汇知识量表为研究工具,探究五年制高职生词汇水平的总体情况,进行简要分析并
英语是我国的第二语言.随着经济的发展和经济全球化的进程,全球人们学习英语的热情大大提高,我国也不例外.交流大于理论的观点一对盛行,从而导致社会人士甚至学生对于口语的